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Python Tutorials: Membership Operators in Python

The membership operators are useful to test for membership in a sequence such as string, lists, tuples and dictionaries.

There are two type of Membership operator:-

  • in
  • not in

1.in

This operators is used to find an element in the specified sequence.

It returns True if element is found in the specified sequence else it returns False.

Examples:-

st1 = “Welcome to devopsschool”

“to” in st1 True

st2 = “Welcome top devopsschool”

“to” in st2 True

st3 = “Welcome to devopsschool”

“subs” in st3 False

2.not in

This operators works in reverse manner for in operator.

It returns True if element is not found in the specified sequence and if element is found, then it returns False.

Examples:-

st1 = “Welcome to devopsschool”

“subs” not in st1 True

st2 = “Welcome to devopsschool”

“to” not in st2 False

st3 = “Welcome top devopsschool”

“to” not in st3 False

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